补充习题数学题
答
暂无优质回答,请稍候...
相关推荐
- 一条线可以把一个平面分成2份、、、、、规律是?补充:两条直线可以把一个平面分成4份(以此类推)规律是?
- 出几个关于行程的数学题有最好有4个不同类型的各两个 的题
- 行程类数学题甲,乙相距27km,两人同时出发相向而行,则出发后1.5h相遇;若两人仍是相向而行,但甲比乙先出发30min,则以出发70min后两人相遇.求甲乙两人的速度
- Section A Directions:阅读Mary和Tim之间对话的下一部分,选择will或to be going to将对话补充完整Tim:Did you do all your job?Mary:Almost.Dave spoke to his dad.21 (We’ll / We’re going to) borrow his van.I’ve booked a hotel.22 (We’ll / We’re going to) stop at the hotel on the way to the gig to collect the keys,because we’ll be very late that night.Tim:What about feeding your cats?Mary:Oh no!I completely forgot!23 (I’ll/I’m going to) ask the neighbor.Tim:Don’t worry.24 (I’ll/I’m go
- 三个连续自然数的公倍数是4620,问这三个数分别是什么?确认正确后,说明原因的追加50分 补充:最小公倍数
- 三个数的平均数是60,又知这三个数的比是3∶5∶7,这三个数最大的一个数是?小学数学题,谢谢回答,我会给分的,谢谢我们老师说是780,是怎么做的啊??
- 45.3 英语选择补充短文空白处的题目(need,animal,I,put,make,expect,find,end,look,since,little,enough)\x05A good friend of ___1___ lives with six hundred animals on an island.Ever ___2___ he left school,he has travelled all over the world ___3___ for animals for his own zoo.He writes bookd about his travels,and about his wonderful ___4___.The money for his books helps him to play for all the animal food.My friend told me that when he was looking for water las week (The
- 三角函数的数学题谁能帮我解答?1.(口答)设a是三角形的一个内角,在sin a,cos a,tan a中哪些有可能是取负值?2.已知角a的终边上有一点的坐标是P(3a,4a),其中a不能为0,求sin a,cos a,tan a的三角函数值.请答题着写出步骤,不然我不能理解.
- 解答5道数学题(三角函数)1.已知 cos(π+α)=-(3/5),且α是第四象限角,则sin(α-(7/2)π)2.若f(cosx)=cos2x,则f(sin15°)的值为3.已知函数f(x)是定义在R上的偶函数,且在区间[0,+∞)上是增函数,另a=f(sin(2π/7)),b=f(cos(5π/7)),c=f(tan(5π/7)),比较a、b、c的大小关系4.若cosα=(1/5),且α是第四象限的角,则cos(-(17π/2)-α)等于多少?5.若角α的终边经过点 p(-x,-6),且cosα=-(5/13),则tanα等于多少?
- 英文学术写作练习题的解答方法I would call Wagner a subjective artist.What I mean is that his art had its source in his personality; his work was virtually independent,I always feel,of the epoch in which he lived.On the other hand,I always consider Bach an objective artist.You can see that he worked only with the forms and ideas that his time proffered him.I do not think he felt any inner compulsion to open out new paths.就是这道题,要求修改使用不恰当或不正式的短语
- “贯”字上面部分的笔顺?
- 英语翻译